Handbook of Electrical Installation Practice - BeKnowledge

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types, 394 variable speed drives, 407 ventilation and cooling, 414 voltages, 413 safety buried cables, 279 burns, 293 design, 299 design and installation, 273 earth faults, 284 electric shock, 281, 283, 443 enforcement, 270 explosions, 296 fires, 295 flammable atmospheres, 298 interlocking, 290 legislation, 267 maintenance, 274 overhead lines, 280 permits to work, 276 policy statement, 271 rescue, 282 rules, 271 tools, 278 training and systems of work, 275 saunas, hot air, 255 segregation, 96 short-circuit levels, 8 showers, 251 site distribution testing and commissioning, 83 soil resistivity, 163 special installations agricultural installations, 258 baths and showers, 249 caravan sites, 263 caravans, 261 construction sites, 257 highway power supplies, 264 hot-air saunas, 255 installations having high protective conductor currents, 261 swimming pools, 252 standards British Standards, 304 cables, 503 CENELEC, 310 IEC, 308 IEE, 312 luminaires, 488 standards and the law, 313 standby power supplies acoustic noise, 157 alternating current systems, 146 batteries, 138 Index 673 battery extensions, 158 battery rotary UPS, 151 charger techniques for regulated d.c. loads, 144 composite standby systems, 159 computer interfaces, 156 continuous mode on-line, 150 d.c. systems, 140 diesel generating sets, 122–138 diesel rotary UPS, 152 ease of use, 156 EMC, 159 expandibility, 157 line interactive UPS, 148 matching the UPS to the load, 152 off-line UPS, 147 safety, 157 selecting a UPS, 154 size and design, 154 value regulated lead-acid batteries, 145 versatility, 159 standby systems, 122–161 star-delta, 467 street lighting, 264, 489 strike, probability of lightning, 199 structure of the UK electricity industry, 2 substations cabling, 45 consumers, 28 duplicate supply, 39 enclosures, 42 fault clearance, 41 fire fighting, 58 foundations, 56 fuses, 52 high voltage, 38 h.v. switchgear, 46, 58 indoor, 44 installation, 55 location of equipment, 57 low voltage, 40 outdoor, 42 outdoor/indoor, 43 procedural planning, 34, 58 programme (of installation), 56 ring main unit, 38 single-supply, 39 transformers, 46 superimposed signals, 11 supply arrangements commercial, 23 domestic, 21 industrial, 24 supply systems construction sites, 110 shock protection, 281
674 Index swimming pools, 252 switchgear busbar assembly, 388 cabling, 388 circuit-breakers, 358, 364, 372, 592, 595 definitions, 358 earthing, 385, 389 erection, 386, 387 gas filling, 389 high voltage, 58, 380 interlocking and padlocking, 290, 384 low voltage, 50 magnetic air circuit-breaker, 366 maintenance, 385 medium voltage, 360 oil circuit-breakers, 364, 366 oil filling, 389 site distribution, 67 storage, 386 sulphur hexafluoride circuit-breaker, 368 switches, 371 testing and commissioning, 372, 390 types of device, 364 vacuum circuit-breaker, 367 vacuum interrupters, 389 switching off for mechanical maintenance, 586, 589 switching transients, 10 system design, 107 earthing, 14 fault level, 112 impedance, 8 loading, 9 reliability, 17, 18 urban, 17 teleswitching, 12 testing and commissioning cable, 527 construction sites, 120 distribution transformers, 354 site distribution systems, 83 standby power supplies, 137 thermosetting insulation, 507 tools, safety, 278 training, 275 transformer assembly, 104 power factor correction, 635 protection, 614 transient overvoltages, 219, 223, 237, 239–243 transients, 10 tropical climates distribution transformers, 346 parallel operation, 347 unbalanced loads, 9 underfloor systems, 88 uninterrupted power supplies, 147 variable speed drives, 470 voltage drop in cables, 563 waveconal cables, 514 wiring systems, 529 zones of protection, lightning, 206
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HANDBOOK OF ELECTRICAL INSTALLATION
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© 2003 by Blackwell Science Ltd, a
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vi Contents System operation 79 Ide
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viii Contents Training and systems
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x Contents 18 Lighting 475 h.r. kin
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Preface My first task as editor is
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2 Handbook of Electrical Installati
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10 Handbook of Electrical Installat
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INTRODUCTION CHAPTER 4 Cable Manage
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CHAPTER 5 Electricity on Constructi
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CHAPTER 6 Standby Power Supplies D.
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INTRODUCTION CHAPTER 7 Ground Earth
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INTRODUCTION CHAPTER 8 Cathodic Pro
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CHAPTER 10 Special Installations or
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CHAPTER 12 Standards, Specification
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CHAPTER 13 Distribution Transformer
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DEFINITIONS CHAPTER 14 Switchgear A
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Table 14.1 (contd) 374 Handbook of
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CHAPTER 15 Rotating Machines D.B. M
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CHAPTER 19 Mains Cables G.A. Bowie,
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